Research peptides you can actually verify.
Every lot ships with an independent ISO 17025 Certificate of Analysis — HPLC purity, mass-spec identity, net peptide content. Read the data before you order.
- Independent ISO/IEC 17025 lab
- HPLC purity ≥98%
- Mass-spec verified identity
- ICP-MS heavy-metal screen
- Batch-level COAs published
- Net peptide content disclosed
- Endotoxin tested (LAL)
- Verify your COA by Report ID
- Lot lookup from your vial
- Cold-pack shipping
- Research use only
Most requested
The reference peptides labs reach for
Radical transparency
Don’t trust us. Verify us.
“Third-party tested” is the peptide industry’s favorite unverifiable claim. We make it verifiable: every lot is tested by Aegis Bioanalytical Laboratories, an independent ISO/IEC 17025-accredited lab, and its full Certificate of Analysis — stamped with a unique Report ID you can check — is published before it goes on sale.
Purity typically runs 98–99%+ and moves lot to lot. We publish the real number for each batch — not a flat 99.9% that no honest HPLC run produces.
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Tested by an independent lab
Aegis Bioanalytical Laboratories runs HPLC purity, mass-spec identity, an ICP-MS heavy-metal screen, net content and endotoxin — accredited, with no shared ownership with us.
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Published with a Report ID
The certificate goes into our public library — purity, identity, net content, pass/fail — each stamped with a unique, checkable Report ID.
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You verify what's in your hand
The lot number on your vial pulls the exact COA, and the Report ID must match. Anyone can check it — no account needed.
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- COAs published
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- Average rating
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Try a live lot:
Every vial prints its lot number on the label. Enter it to read the exact third-party report for your batch — HPLC purity, mass-spec identity, net content, endotoxin.
The standard
What “done properly” means here
HPLC + mass spec
Independent analytical labs verify purity and identity for every lot.
COAs published
Every certificate in a public library, searchable by product or lot.
Net content disclosed
Net peptide content, water, and counterion reported — so your concentrations are real.
Cold-chain shipping
Lyophilized vials shipped with a cold pack; reshipped free if a lot arrives damaged.
Side by side
Us vs. the typical gray-market vendor
The difference isn't the molecule — it's whether you can verify the vial in your hand.
| What you get |  PepBiotics | Typical gray-market vendor |
|---|---|---|
| Independent, ISO/IEC 17025-accredited testing | ||
| HPLC purity + mass-spec identity per lot | ||
| ICP-MS heavy-metal + endotoxin screen | ||
| Batch-level COA published before sale | ||
| Unique COA Report ID you can verify | ||
| Lot lookup from the vial in your hand | ||
| Net peptide content disclosed | ||
| Cold-chain packaging | ||
| Vials with no paperwork at all |
Reviews
Verified researchers, verified lots
2254+ published reviews from the labs that re-test what we ship — moderated only for spam.
Learn
Data first, marketing never
Guides for working with research peptides — reading a COA, reconstitution, purity, and storage.
FAQ
Fair questions, straight answers
More questions? Read the full FAQ or talk to us.
Verify before you buy
Every lot’s Certificate of Analysis is published before it goes on sale — HPLC purity, mass-spec identity, net content. Read the data first, then order. Damaged shipments are reshipped free.